Fig. 1. Schematic of quantitative phase imaging based on wavefront aperture segmentation and multiplane phase retrieval

Fig. 2. Schematic of multiplane phase retrieval

Fig. 3. Flow chart of phase retrieval

Fig. 4. Schematic diagram of experimental setup for multiplane phase retrieval

Fig. 5. Phase imaging of microlens array. (a) Theoretical phase of microlens array; (b) result of phase imaging; (c) residual

Fig. 6. Phase imaging of Zernike aberrations. (a) Input wavefront aberration; (b) phase retrieval result of λ1; (c) phase retrieval result of λ2; (d) final result of phase imaging; (e) residual; (f) normalized evaluation function curve

Fig. 7. Phase imaging of Peaks function. (a) Input wavefront; (b) phase retrieval result of λ1; (c) phase retrieval result of λ2; (d) final result of phase imaging; (e) residual; (f) normalized evaluation function curve

Fig. 8. Phase imaging of phase object. (a) Wavefront of phase object; (b) phase retrieval result of λ1; (c) phase retrieval result of λ2; (d) final result of phase imaging; (e) residual; (f) normalized evaluation function curve

Fig. 9. Phase retrieval results under different PV values

Fig. 10. Normalized evaluation function curves of two algorithms for input wavefront with different PV values. (a) Normalized evaluation function curves for proposed algorithm; (b) normalized evaluation function curves for GS algorithm